// File Access
FAT_FILE_HANDLE Fat_FileOpen(FAT_HANDLE Fat, const char *pFilename){
bool bFind = FALSE;
FAT_BROWSE_HANDLE hBrowse;
FILE_CONTEXT FileContext;
FAT_FILE_INFO *pFile = 0;
if (Fat_FileBrowseBegin(Fat, &hBrowse)){
while (!bFind && Fat_FileBrowseNext(&hBrowse, &FileContext)){
if (FileContext.bLongFilename){
bFind = fatSameLongFilename((alt_u16 *)FileContext.szName, (alt_u16 *)pFilename);
}else{
if (strcmpi(FileContext.szName, pFilename) == 0)
bFind = TRUE;
}
} // while
if (bFind){
pFile = malloc(sizeof(FAT_FILE_INFO));
if (pFile){
pFile->OpenAttribute = FILE_OPEN_READ;
pFile->SeekPos = 0;
pFile->Directory = FileContext;
pFile->IsOpened = TRUE;
pFile->Cluster = FileContext.FirstLogicalCluster;
pFile->ClusterSeq = 0;
pFile->Fat = Fat;
}
}
}
return (FAT_FILE_HANDLE)pFile;
}
// File Access
FAT_FILE_HANDLE Fat_FileOpen(FAT_HANDLE Fat, const char *pFilename){
bool bFind = FALSE;
FAT_BROWSE_HANDLE hBrowse;
FILE_CONTEXT FileContext;
FAT_FILE_INFO *pFile = 0;
int nPos = 0;
char szWaveFilename[MAX_FILENAME_LENGTH];
if (Fat_FileBrowseBegin(Fat, &hBrowse)){
while (!bFind && Fat_FileBrowseNext(&hBrowse, &FileContext)){
if (FileContext.bLongFilename){
//bFind = fatSameLongFilename((alt_u16 *)FileContext.szName, (alt_u16 *)pFilename);
nPos = 0;
alt_u16 *pData16;
alt_u8 *pData8;
pData16 = (alt_u16 *)FileContext.szName;
pData8 = FileContext.szName;
while(*pData16){
if (*pData8 && *pData8 != ' ')
szWaveFilename[nPos++] = *pData8;
pData8++;
if (*pData8 && *pData8 != ' ')
szWaveFilename[nPos++] = *pData8;
pData8++;
//
pData16++;
}
szWaveFilename[nPos] = 0;
if(strcmp(pFilename,szWaveFilename) == 0)
bFind = TRUE;
}else{
if (strcmpi(FileContext.szName, pFilename) == 0)
bFind = TRUE;
}
} // while
if (bFind){
pFile = malloc(sizeof(FAT_FILE_INFO));
if (pFile){
pFile->OpenAttribute = FILE_OPEN_READ;
pFile->SeekPos = 0;
pFile->Directory = FileContext;
pFile->IsOpened = TRUE;
pFile->Cluster = FileContext.FirstLogicalCluster;
pFile->ClusterSeq = 0;
pFile->Fat = Fat;
}
}
}
return (FAT_FILE_HANDLE)pFile;
}
unsigned int Fat_FileCount(FAT_HANDLE Fat){
unsigned int nCount = 0;
FAT_BROWSE_HANDLE hBrowse;
FILE_CONTEXT FileContext;
if (Fat_FileBrowseBegin(Fat, &hBrowse)){
while(Fat_FileBrowseNext(&hBrowse, &FileContext))
nCount++;
}
return nCount;
}
bool Fat_FileExist(FAT_HANDLE Fat, const char *pFilename){
bool bFind = FALSE;
FAT_BROWSE_HANDLE hBrowse;
FILE_CONTEXT FileContext;
if (Fat_FileBrowseBegin(Fat, &hBrowse)){
while (!bFind && Fat_FileBrowseNext(&hBrowse, &FileContext)){
if (FileContext.bLongFilename){
bFind = fatSameLongFilename((alt_u16 *)FileContext.szName, (alt_u16 *)pFilename);
}else{
if (strcmpi(FileContext.szName, pFilename) == 0)
bFind = TRUE;
}
} // while
Fat_FileClose(Fat);
}
return bFind;
}
